TM 5-6675-318-14
5-3. TECHNICAL PRINCIPLES OF OPERATION.
a. The pulsating 12 V dc output is provided by step-down transformer T-1 and
half-wave rectifiers CR1 and CR2.
The primary of the transformer is protected by 3
amp fuse F1.
The LOW, MED, and HIGH compensation taps are used to compensate for
continuously low or high ac input.
b. The ammeter indicates charging current from 0 to 5 amp, and circuit breaker
CB1 protects the ammeter and battery from charging currents in excess of 5 amp.
The nominal output of the battery charger is 12 V dc, 3 amp.
5-3